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bispyribac-sodium 20% WP Used for removing annual weeds on rice

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bispyribac-sodium 20% WP Used for removing annual weeds on rice

Brand Name : Averstar

Model Number : 20% WP

Certification : COA, MSDS

Place of Origin : China

MOQ : Negotiable

Price : Negotiable

Payment Terms : T/T

Supply Ability : 10000kg/month

Delivery Time : 15-30 work days

Packaging Details : aluminium foil bag

CAS No. : 125401-92-5

MF : C19H17N4NaO8

melting point : 223-224°C

molecular weight : 452.35

storage condition : 0-6°C

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bispyribac-sodium 20% WP Used for removing annual weeds on rice


In male rats, acute transoral LD504111mg/kg, female >2635mg/kg, and rat acute transdermal LD50>200mg/kg. No irritation to rabbit skin, slight irritation to rabbit eyes, no teratogenic, mutagenic effect. Quail LD502250mg/kg, halibut LC50 > 100mg/L (96h), water flea LC50 > 100mg/L (48h).

Chemical property

The pure product is white powder solid, m.p.223-224, vapor pressure < 5.05 10-9Pa (25), solubility at 25


Pyrimidine salicylic acid herbicides, acetolactase inhibitors, through the biological synthesis of branched chain amino acids and play a role, suitable for crop rice. It is mainly used for weeding after seedling of direct seeding rice. It is effective to barnyard grass at 1-7 leaf stage, especially at 3-6 leaf stage. It also has good control effect on plantain forearm grass, miscanthus, Arabic sorghum, amaranth, duckweed, melon fur grass, Cyperus heterotypica, crushed sedge, Damasang, fluorescence, purslane and millet grass. This product is stable for most soil and climate environment, and can be mixed with other pesticides.

Product Namebispyribac-sodium
Specification95% TC, 10% SC, 40% SC, 20% WP, 80% WP
Chemical Namesodium 2,6-bis[(4,6-dimethoxy-2-pyrimidinyl)oxy]benzoate
CAS No.[125401-75-4] for acid; [125401-92-5] for sodium salt
Empirical FormulaC19H17N4NaO8; C19H18N4O8 for the acid
ToxicologyOral Acute oral LD50 for male rats 4111, female rats 2635, male and female mice 3524 mg/kg. Skin and eye Acute percutaneous LD50 for rats >2000 mg/kg. Non-irritating to skin; slightly irritating to eyes (rabbits). Inhalation LC50 (4 h) for rats >4.48 mg/l. NOEL (2 y) for male rats 20 mg/kg diet (1.1 mg/kg b.w. daily), female rats 20 mg/kg diet (1.4 mg/kg b.w. daily), male mice 14.1 mg/kg daily, female mice 1.7 mg/kg b.w. daily. ADI 0.011 mg/kg. Other Non-mutagenic in the Ames test, and non-teratogenic to rats and rabbits. Toxicity class WHO (a.i.) U
ApplicationsMode of action Selective, systemic post-emergence herbicide, absorbed by foliage and roots. Uses Control of grasses, sedges and broad-leaved weeds, especially Echinochloa spp., in direct-seeded rice, at rates of 15-45 g/ha. Also used to stunt growth of weeds in non-crop situations.
Package25KG/Drum, 25KG/Bag, 1Kg/Al bag,5L/Drum,1L/Bottle, 500ml/Bottle, 250ml/Bottle, 200ml/Bottle, 100ml/Bottle, 50ml/Bottle etc. etc

Product Tags:

farm herbicides


herbicide weed killer

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